TY - JOUR ID - 70018 TI - The Effect of Binder Components and Powder to Binder Ratio on Rheological Properties of Mg-SiC Feedstocks JO - Advanced Ceramics Progress JA - ACP LA - en SN - 2423-7477 AU - Alimadadi, Majid AU - Alizadeh, Masoud AU - Ghasemi, Ebrahim AD - ceramic, Material and Energy Research Center(MERC) AD - ceramic, Material and Energy Research Center AD - Inorganic pigment and glazes, Institute for color science and technology Y1 - 2016 PY - 2016 VL - 2 IS - 1 SP - 5 EP - 12 KW - Rheological chracteristics KW - Injection Molding KW - Magnesium KW - SiC powder DO - 10.30501/acp.2016.70018 N2 - Rheological characteristics of powder injection molding PIM feedstocks play an important role in final properties of manufactured MMCs. In this study, six formulations composed of magnesium and SiC powder (99:1 wt.%) and a specific binderĀ  were prepared to investigate the influence of binder composition, powder to binder ratio, time and temperature on rheological properties of the feedstock. The binder system contained Paraffin wax, Bees wax, and Stearic acid. Flow chracteristics of the compounds were investigated versus shera rate, time and temperature via rheological studies using a rotary rheometer. Finally, a heat treatment schedule was determined to effectively remove the binder from feedstocks. Resault show that, Viscosity versus shear rate exhibited three different parts with different slopes for all of the studied feedstocks. 1SA yielded Newtonian behavior and increasing the amount of stearic acid up to 6 wt % contributed to the pseudoplastic behavior which is favorable from the view point of manufacturing intricate shapes. Addition of more than 6 wt % stearic acid to the feedstock increased the flow behavior index n and devastated rheological behavior of the feedstocks. UR - https://www.acerp.ir/article_70018.html L1 - https://www.acerp.ir/article_70018_3af29450fe81853b3d35f6e6777e0846.pdf ER -